// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_APP_LIST_SEARCH_TOKENIZED_STRING_H_
#define UI_APP_LIST_SEARCH_TOKENIZED_STRING_H_

#include <vector>

#include "base/macros.h"
#include "base/strings/string16.h"
#include "ui/app_list/app_list_export.h"
#include "ui/gfx/range/range.h"

namespace app_list {

// TokenizedString takes a string and breaks it down into token words. It
// first breaks using BreakIterator to get all the words. Then it breaks
// the words again at camel case boundaries and alpha/number boundaries.
class APP_LIST_EXPORT TokenizedString {
public:
    typedef std::vector<base::string16> Tokens;
    typedef std::vector<gfx::Range> Mappings;

    explicit TokenizedString(const base::string16& text);
    ~TokenizedString();

    const base::string16& text() const { return text_; }
    const Tokens& tokens() const { return tokens_; }
    const Mappings& mappings() const { return mappings_; }

private:
    void Tokenize();

    // Input text.
    const base::string16 text_;

    // Broken down tokens and the index mapping of tokens in original string.
    Tokens tokens_;
    Mappings mappings_;

    DISALLOW_COPY_AND_ASSIGN(TokenizedString);
};

} // namespace app_list

#endif // UI_APP_LIST_SEARCH_TOKENIZED_STRING_H_
